Journal
DALTON TRANSACTIONS
Volume 39, Issue 8, Pages 1948-1953Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b919170d
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Funding
- NSFC [20901077]
- MSTC [2007CB815304]
- NSF of Fujian Province [2008I0027, 2008F3117]
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Heterotetranuclear Zn(2)Ln(2) (Ln = Nd 2, Eu 3, Sm4, Er 5, Yb 6) complexes {Zn-2(Mq)(2)(tpyO)(2)}{(Ln(hfac)(3))(2)} (HMq = 2-methyl-8-hydroxylquinoline, tpyOH = [2,2':6'2 '']terpyridin-4'-ol, hfac = hexafluoroacetylacetonate) display novel square structures ligated by bifunctional ligands tpyO (mono-and tridentate) and Mq (chelating and bridging mu-phenoxo). These compounds exhibit sensitized lanthanide emission upon photo-excitation of ZnMq/tpy antenna chromophores. By virtue of the dual luminescence with complementary colors, the ZnMq/tpyO-based cyan emission and Sm-III-centered orange luminescence are combined to generate a white-light emission in Zn2Sm2 (4) complex.
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